A method for implementing an industrial firewall for ethernet/ip protocol dynamic tracking
An industrial firewall and dynamic tracking technology, applied in transmission systems, electrical components, etc., can solve problems such as the vulnerability of server industrial networks to attacks, avoid major losses, maintain normal operation, and improve commissioning efficiency.
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[0033] The invention is a method for dynamically tracking the session of the application layer of the Ethernet / Ip protocol in the communication process of the industrial network environment. In the industrial network environment, the protection of the firewall for Ethernet / IP is only to analyze and filter the Ethernet / IP data flow passing through the firewall according to the predefined access control strategy and security protection strategy, and to detect the content of the data packet through deep detection of DPI. rationality. As an important and complex industrial communication protocol, Ethernet / IP is far from enough to achieve this kind of protection.
[0034] The Ethernet / Ip application layer session dynamic tracking method proposed by the present invention is based on the use of the SessionHandle field in the Ethernet / Ip protocol. This field is highly complex and can precisely control the application layer session. The main steps of the method are divided into two ste...
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